Surveying, GIS, & Remote Sensing POST TEST Flashcards
It is a type of surveying that treats the surface of the earth as flat surface. The spheroidal shape is neglected, with regard to horizontal distances and directions.
Plane Surveying
This surveying made to determine the length and direction of land lines and to establish the position of these lines on the ground.
Boundary Surveying
This is a special form of theodolite that has a stadia diaphragm and an anallatic lens. This eliminates the need for a chain because the distance can be calculated using the diaphragm.
NOTA
Plane table
Tachometer
Total Station
NOTA
It is a graphic representation of the Earth’s natural features; artificial or human-made structures; or observable facts, occurrences, or circumstances; usually drawn on a flat surface or in a two-dimensional (2D) medium.
MAP
These are imaginary lines that show the elevation (the vertical distance above or below sea level) and relief (shape of the terrain) of the different features on the surface of the Earth.
CONTOUR
It describes the vertical datum where elevation/height values are referenced and not from the base of mountains or hills.
Mean Sea Level
The acronym GIS stands for _
Geographic Information System
These are numbers that describe the position of a certain feature on Earth. They are used to define the spatial location and extent of geographic objects.
Coordinates
It is a process in which you model problems geographically, derive results by computer processing, and then explore and examine those results.
Spatial Analysis
Who first coined the term geographic information system (GIS) that created the first computerized geographic information system in the 1960s while working for the Canadian government—a geographic database still used today by municipalities across Canada for land planning?
Dr. Roger F. Tomlinson
Who developed the ArcGIS?
ESRI
It is a model that represents a simplified view of physical entities, the roads, mountains, accident locations, or other features we wish to identify.
Data
These set of layer organizes the spatial and attribute data for a given set of cartographic objects in the region of interest.
Thematic Layers
_____ data are used to record the nonspatial characteristics of an entity. It is also called item or variable.
Attribute
An attribute that provides descriptive information about an object.
Nominal
An attribute that implies a ranking or order by their values. It may be descriptive, such as high, mid, or low, or it may be numeric.
Ordinal
It describes the world as a set of point, line, and area features.
Vector Data
It is based on grid cells and represent the world as a “checkerboard,” with uniform values within each cell.
Raster data
It is the process of defining exactly where on the earth’s surface an image or raster dataset was created
Georeferencing
The smallest unit of information in an image or raster map.
CELLS/PIXEL
Are common vector spatial data format that uses an index to link files and were originally developed by ESRI, inc., as a way to store point, line, and polygon features.
Shapefiles
The science of obtaining the physical properties of an area without being there. It allows users to capture, visualize, and analyze objects and features on the Earth’s surface.
Remote sensing
It is a remote sensing method that uses light in the form of a pulsed laser to measure ranges (variable distances) to the Earth.
LiDAR
It involves making sounds and listening to the way they bounce off objects. The echoes provide very useful information about the objects.
Sonar
These are the 4 M’s of GIS except:
*
Multipart
Monitor
Maps
Model
multipart
An The coordinates of the location: MSU-Gensan is 6.0660, 125.1281 . On this coordinate, what is the longitude value?
125.1281
Convert 39° 25’ 30” to decimal degrees.
39.425
What is the UTM coordinate of a location which is located in 3,550,000 meters south of the equator and 85,000 meters West from the central meridian.
415,000, 6,450,000
It is a type of GIS maps that incorporate color-coded systems to display numerical density in a given area. It is an effective way to easily relate numerical data when dealing with a large amount of data.
Heat Maps
It indicates the relationship between the distance measured on the map and the actual distance on the ground.
Scale
